Longitudinal models of individual growth typically emphasize between-person predictors of change but ignore how growth may vary "within" persons because each person contributes only one point at each time to the model. In contrast, modeling growth with multi-item assessments allows evaluation of how relative item performance may shift…

Longitudinal models typically emphasize between-person predictors of change but ignore how growth varies "within" persons because each person contributes only one data point at each time. In contrast, modeling growth with multi-item assessments allows evaluation of how relative item performance may shift over time. While traditionally…

Establishing validated science programs for students with or at risk for learning disabilities requires testing treatment effects and exploring differential response patterns. This study explored whether students' initial mathematics and reading skills influenced their treatment response to a whole-class, second-grade science program called…

The main purpose of this longitudinal research was to study the effects of transcription skills, text generation skills and self-regulation on Icelandic children's writing, compare their effects on two different text genres and see if it changes with age, from second to fourth grade. Eighty-seven Icelandic children were followed up from first…

Despite huge investments in interventions designed to support oral language skills in early childhood and beyond, many of the interventions fail to identify impacts on children's language learning. Programmes may have limited impact because they do not sufficiently succeed in supporting teachers' instructional talk, and thus, more efficiently…

Purpose: This study examines the linguistic skills that support the learning of science and social studies vocabulary words for second-grade Latino bilingual students. Method: We used data from a cluster randomized study where second-grade classrooms within schools were randomly assigned to the intervention group (n = 13) or the control group (n =…

The current study examined the relation between the amount of literacy instruction and student reading achievement (word reading and reading comprehension), using data from 927 students and their 189 teachers from Grades 1 to 3 in the US. Literacy instruction was observed once in the Fall and once in the Spring each year from two projects. We…

We investigated whether congruent action while reading informational texts about physics improves science, technology, engineering, and math (STEM) vocabulary learning and reading comprehension. Second- and third-grade Spanish-speaking children (N = 216) were randomly assigned to one of five conditions implementing forms of Embodied-Action or…

More research attention and implementation support are needed for mathematics intervention as student achievement in this area continues to fall below desirable levels. Incremental rehearsal is an intervention to help students build reading, vocabulary, and math fluency. Research supports the use of incremental rehearsal for improving math fact…

Purpose: This study aims to explore the contributions of phonological awareness (PA) and morphological awareness (MA) to the reading comprehension skills of Chinese-speaking children with hearing loss (HL) and examine the possible mediation effect of vocabulary knowledge on the relationships of PA and MA with their reading comprehension. Method:…

Purpose: We sought to examine second grade teachers' word use throughout the school day to identify the amount and type of teacher vocabulary use across content areas as well as to examine relationships between this teacher talk and student language and literacy achievement. Method: Second grade teachers (n = 64) and a random sample of half of…

This study examines four of the most commonly-used core mathematics curricula in the USA for evidence of support for research-based instructional strategies for mathematics vocabulary in first and second grade. Content analyses of the teachers' editions of two units for each grade level were analyzed per curriculum (n = 16). Statistically…

Domain-specific vocabulary knowledge is an important precursor to overall knowledge acquisition, which is essential to reading and comprehending grade-level texts. There are a number of malleable factors within the classroom that can be shaped by teachers and policy makers, yet additional empirical evidence is needed to uncover and evaluate those…

Purpose: The purpose of this study was to examine if word reading and vocabulary are reciprocally related. Method: We followed a sample of 172 English-speaking Canadian children (82 girls, 90 boys; M[subscript age] = 75.87 months at the first measurement point) from the beginning of Grade 1 until the beginning of Grade 3 and assessed them three…

We evaluated the long-term effects of a supplemental, small-group kindergarten vocabulary intervention in fall and spring of first grade and winter of second grade. Participants included students from two studies, an initial efficacy study and a subsequent replication study, identified as at risk for language and learning difficulties, who were…